Kjersti Solberg Eikrem holds a PhD in mathematics from NTNU (2013). Since October 2018, she has been a researcher at NORCE Energy. From 2014 to 2018 she was a researcher at International Research Institute of Stavanger (IRIS). She has also been a postdoc at The National IOR Centre of Norway (2014-2020). Her research interests are optimization and data assimilation with ensemble-based methods, offshore wind, seismic inversion, batteries and uncertainty quantification in inverse problems.
Kjersti Solberg Eikrem
Senior Researcher
kjei@norceresearch.no
+47 51 87 56 14
Nygårdsgaten 112, 5008 Bergen, Norway
Division
Energy and Technology
Research themes
Renewable energy
Offshore Wind Energy
Ensemble based methods
Data assimilation
Reservoir Modelling
Research Groups
Data Assimilation and Optimization
More information about Kjersti
Projects
Publications
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Academic articleAccelerated ensemble optimization using momentum methods– Scientific Reports 2024
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Academic chapterInversion of Electromagnetic Induction Log in Anisotropic Media using an Adjoint Integral Equation Method– 2024
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Academic articleNon-Gaussian Ensemble Optimization– Mathematical Geosciences 2024
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Research reportEfficient scattering approach to seismic full-waveform inversion in anisotropic elastic media with variable density– arxiv.org 2024
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Conference lecture3D Modeling and Inversion of Induction Logs. 2023 Highlights– DigiWells Seminar 2023
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Academic article3-D induction log modelling with integral equation method and domain decomposition pre-conditioning– Geophysical Journal International 2023
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Conference lectureOffshore wind farm layout optimization using ensemble methods– The offshore wind conference Science Meets Industry 2023
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Conference lectureNon-Gaussian Ensemble Optimization (presentation)– CSSR Partner Workshop 2023 2023
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Conference lectureNon-Gaussian Ensemble Optimization (Presentation)– EnKF Workshop 2023
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Conference lectureNon-Gaussian Ensemble Optimization and Likelihoods– Visit at TU Delft 2023
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Academic chapterTowards Real-Time 3D Modeling of Induction Logs Using an Integral Equation Method– 2023
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Academic articleOffshore wind farm layout optimization using ensemble methods– Renewable Energy 2023
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Academic articleA matrix-free variant of the distorted Born iterative method for seismic full-waveform inversion– Geophysical Prospecting 2023
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Academic articleHomotopy scattering series for seismic forward modelling with variable density and velocity– Geophysical Prospecting 2021
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Academic articleIterative solution of the Lippmann-Schwinger equation in strongly scattering acoustic media by randomized construction of preconditioners– Geophysical Journal International 2020
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Academic articleUltrasound Imaging of the Brain using Full-Waveform Inversion– Proceedings - IEEE Ultrasonics Symposium 2020
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Academic articleHomotopy method for seismic modeling in strongly scattering acoustic media with density variation– SEG technical program expanded abstracts 2020
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Conference lectureRandomized construction of preconditioners for the Lippmann-Schwinger equation– Workshop on seismic modelling and imaging in complex media 2020
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Research reportIterative solution of the Lippmann-Schwinger equation in strongly scattering media by randomized construction of preconditioners– arxiv 2020
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Academic articleBayesian full waveform inversion in anisotropic elastic media using the iterated extended Kalman filter– Geophysics 2020
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Academic articleTarget-oriented inversion of time-lapse seismic waveform data– Communications in Computational Physics 2019
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Academic articleIterated extended Kalman filter method for time-lapse seismic full-waveform inversion– Geophysical Prospecting 2018
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Academic articleA target-oriented scheme for efficient inversion of time-lapse seismic waveform data– SEG technical program expanded abstracts 2018
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Conference lectureTime-lapse full waveform inversion as a smart monitoring tool for future IOR– IOR Norway 2018 2018
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Academic articleConditioning reservoir models on rate data using ensemble smoothers– Computational Geosciences 2018
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Academic chapterBayesian inversion of time-lapse seismicwaveform data using an integral equation method– 2017
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Academic chapterBayesian inversion of time-lapse seismic waveform data using an integral equation method– 2017
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Academic articleBayesian estimation of reservoir properties—effects of uncertainty quantification of 4D seismic data– Computational Geosciences 2016
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Conference lectureEnsemble based reservoir characterization using seismic and production data– SIAM Conference on Mathematical and Computational Issues in the Geosciences 2015
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Academic articleCoefficients Multipliers of Weighted Spaces of Harmonic Functions– Integral equations and operator theory 2015
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Conference lectureEnsemble based 4-d seismic history matching– Mini seminar on Parameter Estimation and Uncertainty Quantification 2015
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Conference lectureEnsemble based methods for estimation and optimization– Workshop in Applied Mathematical Modeling, Optimization & Uncertainty Quantification", 2014
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Academic articleRandom Harmonic Functions in Growth Spaces and Bloch-type Spaces– Canadian Journal of Mathematics (CJM) 2014
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Academic articleWavelet characterization of growth spaces of harmonic functions– Journal d'Analyse Mathematique 2014
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Academic articleHadamard gap series in growth spaces– Collectanea Mathematica 2013
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Academic articleRadial growth of harmonic functions in the unit ball– Mathematica Scandinavica 2012
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Conference lectureCoefficient estimates of harmonic functions and oscillation of Hadamard gap series– Analysis Seminar, Trondheim 2011
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Conference lectureRadial growth of harmonic functions– Analysis Seminar, Barcelona, CRM 2011
